Twine package and process for its manufacture



Sept. 4, 1928. I v 682,777

J. H. DAMON TWINE PACKAGE AND FHOCESS FOR ITS MANUFACTURE Filed March 10. 1927 l ii '1' 117 be 21 To 7' Jo 7111i? Fm 7110 b Z niu @ZWMW 'dfiloz'zu gs Patented Sept. 4, 1928..

UNITED stares earner crews.

JOHN H. nelson, on rnriuourn. Massacre *ro mir/tours Corinne-n. company, on PLYMOUTH, Mnssnonusnr TF5, AUUREOEJLTTON O33 EEASSACHUSETTS.

Twins :enoianon AND :enocnss non rrsrannnnacr'onn.

Application filed March 10, 1927. Elerial No. 1%,170

This invention relates to improvementsin twine packages and processes for their menulapse when dropped or otherwise mishandled,

The invention provides a non-collapsing core made of thebinder twine itself on a small 1 hard spindle in the Universal style, without the twine slipping and bunchinp; te zether at the centre as has hitherto occurred when such winding has been attempted; and provides so that when the twins is drawn for use it willcome away freely from the centre of the the occasional holding hitherto noted owing to fibers being pinched together.

In cops made with Universal or compact wind the above difficulties have been experienced, and the only ways known in the industry to avoid them have been to introduce a soft. core of foreign materiah as paper, or to cop, without r make an entralarge axial hole, which i wasteful, and then at extra expense to add a special reinforcing exterior covering to prevent collapse of the cop from shock. I have found. that a part of the trouble arises from some of the convolutions first wound becomin slack by slipping on the core and the loops thus made becoming pinched between convoluliions later wound. Also a part of the problem arises from the inherent hairy nature of binder twine, due to the spreading of fibre ends. F nch fibre ends are pinched and held between threadslater laid; and while this conditiouhas notproved serious in the outer portions of the cop it, in combination with the pinching; of loops. has been particularly annoying where at small circumference near the core. 1

It among the objects of theinvention to provide cops of binder twine which will. be self-contained, strong and free from the above objections. An important feature is to make the cop in two portions, one of which is a core portion wherein the twineis laid with a short pitch such that it will not materially slip along the axis when laid directly on the small, hard spindle of the winding machine. When this winding has been made a few layers deep, enough to make a stable centre, the pitch of the wind can be chan ed to standard, automatically, or haudfdnd the remainder of thecopwound in the usual way. The labor and expenseincident tothe use of soft cores, and the resulting troubles in the harvesting machine, are eliminated. as well as the need for means to reinforce e5:- teriorly a completed cop. A cop .coul d be made with the short pitch used throughout the cop, but this would be objectionable because ofthe wealr binding effect which acorn volution of short pitch hasat the cop end,

where the direction of traverse is reversed. And if the long pitch, which makes the strongest bin ding for the cop ends, were) used the threads would slip andbunch badly at the 7 core. The combination of a lone pitch body with a. short pitch core, and the co mbinatioh inthe core of a spacinglgapart ofsuccessivelv laid convolutions in the same layer. acconiplishes the purposes desired in the best way.

It is intended that the patent shall cover by suitable expression in the appended claims, wh atever features of patentablenovolty exist in the invention disclosed.

In theaccompanying drawings Eigure 1 is an elevation showing the initial convolutions of a cop of binder't wihebeing wound according tothe invention one small,

hard spindle of a universal winding machine, and r Figure Q-is a like view, showing; a later stage of the winding, viz, a completely wound core and the first few convolutions over it of the winding which completes the cop.

In Figure 1 of thedrawings a thread 10 of hinder twine represented as being guided alongthe spindlelQ of a winding machine by the usual'twine guide 14:. The twine is laid directly on the spindle 12 with a pitch of wind so short that it does not materially slip axially thereon. A slightslipr ping of the initially laid winds may occur,

but the slipping does not become objectionableunless it extends so far thatbunching at the centre of the cop results. Such inconsequential slipping does not interfere with the winding of the cop body, nor cause deformation of the cop. Such a slipped condition is illustrated. in Figure 1 in a. conventional way, although it may not always occur; and there it may be seen that the slipping of end convolutions has gone butlittle inward from the dotted limits 15 of traverse of the thread guide 14. The later convolutions donot slip at all.v In the particular instance represented the cop will be of a standard size having dimensions of five and three-fourths to six inches from end to end, and a diameter of approximately seven inches. With a wind of the customary Universal type the twine may make two convolutions 1n travelling from end to end of such a cop. This long pitch of wind is entirely suitable for the body portion of a cop, but has a tendency to slip and to bunch at the centre of the cop producinga defect which it is an object of the invention to avoid.

According to the invention the twine atthe beginning, as in Figure 1, is wound with a pitch considerably less than that which is to make up the body of the mass-enough less so that the twine will not materially slip, whatever that pitch may be. In the case illustrated I' have found that a pitch producing anywhere from two and one half to four convolutions in the travel from end to end ofthe cop is suitable. However, the convolu tions are not made close against each other as is usual and as is rcpresentedin the cover ing layer in Figure 2, but each thread is spaced from its parallel neighbor. This permits its projecting fibre ends to be pretty much clear of being pinched by threads laid subsequently; and prevents the latter from pinching any loose loop of athread, if there be anyisuch. Afterthe convolutions are a few layers deep of this special wind, the pitch and feed of the winding may be shifted and the remainder of the cop may be made by the ordinary long pitch and compact lay, as seen at 16 in Figure 2. This is done by changing the gearing (not shown) between the rotation of the spindle 12 and the reciprocation of the thread guide 14.

Thehaving of the spaced winding throughout the first layers of the cop is especially useful to permit the twineto come out easily and freely from the cop at all times. Completed cops made according to the invention will have greater inherent stability than cops as heretofore commonly constructed, having this both at ends and at center and requiring no core of paper,'and no reinforcing exterior covering. And the central hole may be so small as to prevent the driver of a grain binder j from carrying his supply of balls strung upon his rein guard, a practice which is pernicious because liable to disarrange the balls interior so as to cause other troubles inits unwinding.

I claim as my invention:

1. A twine cop composed of a core portion ofwound twine and a body portion wound thereon; those convolutions which lie parallel and adjacent to each other and which are all in a single layer being laid apart, in said layer in the said core portion of the cop, and being laid compactly together in the said body portion.

2. A twine cop made with quick traverse lay and comprising a core of the twine wherein those convolutions which are parallel and adjacent to each other in a layer are spaced apart, and comprising a body portion of twine distinct from the core, continuous with and supported on said core.

3. A twine cop comprising a core made of the twine of the package, in which core the convolutions nearest together in each layer are spaced apart and are laid with shorter pitch than the pitch of the body of the co the said body being built on saidcore wit the convolutions which are nearest together in each body layer laid compactly together. 4. A process for making twine ackages comprising the winding of the initial layers of the twine with a quick traverse of short pitch and spaced convolutions, on a small, hard spindle, the said pitch being at least short enough for the frictional grip of twine on the hard surface of spindle to hold against material slipping thereon; followed by the winding of the body of the package with a quick traverse having longer pitch and having compact lay of adjacent convolutions.

5. A process for making twine packages comprising the forming of a core by winding the twine with convolutions all of short pitch throughout a small diameter at the centre of the package, and then abruptly chan 'n the pitch of wind and thereby forming t 6 body of the package on said core with convolutions 

